Margaret A.WinkerMD, Deputy EditorIndividualAuthorPhil B.FontanarosaMD, Interim CoeditorIndividualAuthor
In Reply: Our measure of patient
trust was based on the Trust-in-Physician scale.1 In a pilot study,2 we modified that scale by rewording items so
that they refer to the patient's physician, deleted items we thought
were indicators of the consequences of trust rather than trust itself,
and added items to capture theoretical dimensions of patient trust that
we thought were not covered well in the original scale. We assessed the
face validity with physicians, health care administrators, patients,
and survey researchers not associated with our research team. Construct
and criterion validity of a draft scale in the pilot study were good.
However, factor analyses and other standard psychometric techniques
indicated that the responses to the questions were not consistent with
our hypothesized dimensions of trust. The scale was unidimensional and
had high internal consistency (coefficient α) of .90.
Cleary PD, Zaslavsky AM, Green DC, Koplan JP, Kao AC. Method of Physician Payment and Patient Trust—Reply. JAMA. 1999;281(13):1173. doi:10-1001/pubs.JAMA-ISSN-0098-7484-281-13-jbk0407